diff --git a/RELNOTES b/RELNOTES
index e1ed1d18fc6..515ba162b44 100644
--- a/RELNOTES
+++ b/RELNOTES
@@ -10,6 +10,11 @@ newline.  Entries should be separated by a newline.
 
 Changes to this file should not be MFCed.
 
+54974e731f27, 155987e20190, 4634282f8908, 7a3a0402aeb6, 6b1a5d3535d9:
+	The layout of NFS file handles for the tarfs, cd9660, and ext2fs
+	file systems has changed.  An NFS server that exports any of these file
+	systems will need its clients to unmount and remount the exports.
+
 83f1b98d8227:
 	grep(1) no longer follows symbolic links by default for
 	recursive searches.  This matches the documented behavior in
diff --git a/UPDATING b/UPDATING
index e8ce65692e6..9509e5405da 100644
--- a/UPDATING
+++ b/UPDATING
@@ -12,6 +12,11 @@ Items affecting the ports and packages system can be found in
 /usr/ports/UPDATING.  Please read that file before updating system packages
 and/or ports.
 
+20250117:
+	The layout of NFS file handles for the tarfs, cd9660, and ext2fs
+	file systems has changed.  An NFS server that exports any of these file
+	systems will need its clients to unmount and remount the exports.
+
 20240419:
 	Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
 	been upgraded to 18.1.6. It is important that you run `make delete-old`